QUESTION 183An engineer is asked to monitor the availability of the next-hop IP address of 172.16.201.25 every 3 seconds using an ICMP echo packet via an ICMP echo probe. Which two commands accomplish this task? (Choose two.)

QUESTION 185A network engineer receives reports about poor voice quality issues at a remote site. The network engineer does a packet capture and sees out-of-order packets being delivered. Which option can cause the VOIP quality to suffer?

Answer: DExplanation:In traditional packet forwarding systems, using different paths have varying latencies that cause out of order packets,eventually resulting in far lower performance for the network application. Also , if some packets are process switched quickly by the routing engine of the router while others are interrupt switched (which takes more time)then it could result in out of order packets. The other options would cause packet drops or latency, but not out of order packets.

QUESTION 186What is the administrative distance for EBGP?

A. 200B. 30C. 70D. 20

Answer: D

QUESTION 187Considering the IPv6 address independence requirements, which process do you avoid when you use NPTv6 for translation?

A. Encapsulation is mismatched.B. Frame Relay map is configured.C. DLCI is active.D. DLCI is inactive or deleted.E. An access list is needed to allow ping

Answer: ADExplanation:Frame Relay: Cannot ping Remote Router :1-Encapsulation mismatch has occurred.2-DLCI is inactive or has been deleted.3-DLCI is assigned to the wrong subinterface.4-An access list was misconfigured.5-The frame-relay map command is missing.6-No broadcast keyword is found in frame-relay map statements.

Answer: AExplanation:options can be carried in a TCP header. Those relevant to TCP performance include Window-scale option : This option is intended to address the issue of the maximum window size in the face of paths that exhibit a high-delay bandwidth product. This option allows the window size advertisement to be right-shifted by the amount specified (in binary arithmetic, a right-shift corresponds to a multiplication by2). Without this option, the maximum window size that can be advertised is 65,535 bytes (the maximum value obtainable in a 16-bit field). The limit of TCP transfer speed is effectively one window size in transit between the sender and the receiver. For high-speed, long-delay networks, this performance limitation is a significant factor, because it limits the transfer rate to at most 65,535 bytes per round-trip interval, regardless of available network capacity. Use of the window-scale option allows the TCP sender to effectively adapt to high-band-width, high-delay network paths, by allowing more data to be held in flight.The maximum window size with this optionhttp://www.cisco.com/c/en/us/about/press/internet-protocol-journal/back-issues/table-contents-5/ ipj-archive/article09186a00800c8417.html

QUESTION 193A network administrator creates a static route that points directly to a multi-access interface, instead of the next-hop IP address. The administrator notices that Cisco Express Forwarding ARP requests are being sent to all destinations. Which issue might this configuration create?